Machine for polishing plate-glass.



H. ZOERNER.

MACHINE ron POLISHING PLATE GLASS.

. APPLICATION FILED MAY 5, I915)",

.Patented Jan. 4, 191,6.

4 SHEETS-SHEET '1.

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E'Mm H1130 Zae'r'lwri w yam Game H. ZOERNER. MACHINE FOR- POLISHINQS PLATE GLASS.

' A PPLICATlON FILED MAY'fi. 1915.

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H ZOERNER. MACHINE FOR POLISHlNG PLATE 'GLASS. APPLICATION FILED MAY 5,1915.

1,167,244, Patented Jan. 4, 1916.

4 SHEETS-SHEET 3- Q I wmukcw 171590 2067726 H. ZOERNER.

MACHINE FOR POLISHING PLATE GLASS APPLICATION FILED MAY 5. ms.

1,167,244. Patented Jan.'4, 1916.-

. v v lizgo 20am? W J I 1 t F 22 Zand i STATES? ATENT OFFICE.

f 'rrueo zonnnna, oranoanra,

, Application filed ma 5,

I To all whom it may concern:

zen of 'the United whereby the operation of polishing a Be it'known that I, HUGO Zonnnnn, a citi* States, residing at Arcadia, in the county of Manistes and State of Michigan, have invented new and useful Improvements in Machines for Polishing Plate- Glass, of which the following 1s a spec fication. 4 i

This invention relates to a machine for polishing plate glass, particularly the beveled surfaces of beveledplate glass, the object of to provide a machine beveled surface may be efficiently, economically and rapidly accomplished.

A further object of the invention being the inventlonis to provide a-machine of the character described which embodies the use of one or more polishing belts composed of felt and a backing of a strong and durable material, such as canvas, combined with means whereby the. glass may be adjusted andv supported to present its beveled -surface to the rubbing action of the belt or the belts may be desiredyto exert a desired rubbing pressure the glass whereby the belts and a polishing medium used in'conj unction therewith.

A further object of the invention is to provide a machine embodying means whereby made as torque or loose as on the glass, and also adjusted to suit differ ent thicknesses of glass plates, and also embodying a table or carriage for supporting latter may beproperly adjusted toward and from the belt or belts and also moved in a direction transversely of the belt or'b'elts so as to secure a rapid and efficient polishing action.

The invention consists ofjthefeatures of construction, comb1nat1on and arrangement of parts herein fully described and claimed,

reference belng had to the accompanying "drawingsm w 555 tructure 1, singpolft gen overheadshaftg "machine. Fig. 3 is an 'same. Fig. 4: is a top plan view of the machine. Fig.

Figure 1 is a front elevation of a polishing machine constructed in accordance with my invention. Fig. 2 is a rear elevation of the end elevation of the -5 is a vertical front to rear section on line 5-5 of Fig.4. Fig. 6 is a vertical longitudinal section on line 6'6 of Fig. 4, Fig. 7 is a top plan view of the carriage or traveling table. Fig. 8 is, a bottom plan view of the carriage or tabie top. In'carrying my invention into practice, I provide a machine including a suitable frame I maonmnron rousiime PLATE-GLASS. M v I i v Specification of Letters fPatent. 1

. derside of a work bed tion, such while it is sufficiently porous mronrean.

Patented J an. 4;, 1916.

1315. Serial notaaoe provided with driving pulleys i), whereby it may be driven from any suitable source of power.

frame or a suitable floor or foundation from which it rises are track rails- 1 extending in the same direction as the shaft 2 and upon which is arranged to travel a carriage or table 5 provided with wheels or rollers 6 to traverse said rail. v

The carriage includes a suitable frame.

structure having guide bars 7 extending transversely thereof, and-in a direction from front to rear of the machine, adapted to engage guide grooves 8 in the unor table top ,9,'which is provided at the front with a suitable grip or handle 10 and at the rail 11,

Thepolishing mechanismcomprises one or more endless polishing belts 12, two being shown in thepresent instance, each belt comprising a working felt and a backing lamina or surface 14:. of

Supported upon the base of the v which bars are rear with alongitudinallyextending abutment strip or lamina orpsurface 13 of strong and durable material, such as'canvas.

width and thickness.

any suitable 1 I the belts 12 pass around drive As shown, pulleys 15 on pulleys-16 on a countershaft-17 journaled in suitable bearings 18 arranged at a point below and in rear of the surface of the supporting table, the belts thus being so extended that their lower or working stretches will run at an angle to the horizontal corresponding to the bevelof the glass to behe table 9.

polished, which rests upon t Atpoints intermediate the shafts 2 and 17 the lowest stretch of each belt passes over a, grooved guiding or direction pulley 19 and beneath awombineddirection and pressure pu y o Wheel P ley- 19. is

otherwise secured to the canvas backing and may be of tobe polished, the

the shaft 2 and around guide ioo . frame 24 and passing. through sol mounted on a horizontal shaft 21 journale'd in spaced bearing members 22 on a support-v of the belt against which it bears. The adjusting means for the bracket 23 may be of any suitable construction, in the present instance I have showna fixed screw stem-2 5 projecting upward from the base of the an apertured cross head 26 on the bracket 23 and carrying an adjusting screw 27 acting on said cross head, whereby the bracket may be adjusted and supported at different elevations.

Each direction and pressure pulley or wheel 20 is carried-by a, shaft 28 journa'led in spaced beari'ngs'29 upon the horizontal arms 30" of L-shaped supporting members 31; the vertical arms 32 of which are longitudinally slotted, as at 33, to receive clamping screws or bolts 34 adjustable in said recesses or openings in the bearing members 22, the heads of thescrews being arranged to bear against the washers 35, and the construction thus being such that the supporting members 31, together with. the shaft 28, provide a vertically adjustable direction toward and from the table on an arc of a greater or less radius,

pulley 20 with respect to the pivot and clamping screws 34. I

It will be observed that each wheel or roller 20 is arranged above the plane of the ffassociated pulley '19 and between the same and thetable, and that said wheel or roller 20'is arranged to bear upon the upper surface of the lower or working stretch of the belt to force the same downward to by vertically adjusting said wheel or roller 20 this angle may be varied and the working stretch of the belt made to operate with a greater or less pressure against the work. Upon loosening the clamping screws r34: either or any of the wheels or rollers 20 may be swung rearwardly to the non-working or dotted line position shown in Fig. 5, so that any number of belts of the series employed may be thrown out of action whenever desired or the rollers 20 disposed for the ready l23nd convenient application or removal of a elt.

In practice, the glassplate 36 having the beveled surface 37 to be polished is rested upon the table top-9 so that the edge of its beveled portion will rest against the abut- I merit strip or rail 11.

stretch of the belt is then disposed in pro er I an overhead drive shaft, a counteraft arnae If the working operative position, the table is slid wardly on the carriage until the beveled sur- 'neath the according to the degree of adjustment ofthe wheel or menses face of the glass is brought into contact with I the surfaces of the belts at the bearingpoin-t or angle of the-latter. The polishingmedium thenbeing applied in any -'suitable manner, the belts are set intoaction, their lower or working stretches traveling ina downward and rearward direction, as indicated by the arrow, over'and across the beveled surface of the travel across the beveled surface of the glass, the-operator'shifts the carriage 1011-,

gitudinally,'thus bringing. the beveled surface'of the glass along its entire length beworking surfaces of .the belts, whereby the entire beveled surface is polished. It will be observed that the back and forth adjustment of the table top permits the operator to' adjust glasses having beveled surfaces at different angles, or beveled portions which vary in thickness, to be adjusted at a proper position with relation to the acting surfaces of the belts glass, as the'belts v without the necessity of adjusting the latter, J

and that the back and forth or reci-procatory motion of the carriage permits any length of beveled surface to beeas ily, quickly, efficiently and economically polished. These and other advantages will beevident from the foregoing description." I claim '1. In a-machine for polishing thebeveled surfaces of plate glass, the combination of an endless traveling pblishingloelt having a lower working stretch; arranged atan angle to the horizontal, a h'prizontal support for the glass, a guide roller' for. the working stretch of the belt disposed at a point beyond and substantially port, and means for acting upon the working stretch of the said belt ad acent to said roller to regulate the working angle of the working portion of said stretch audits pressure upon the glass. ward the table at a working angle, and that surfaces of -plate glass, the combination of 2. In a machine forjpolishing the'beveled an endless traveling and polishing belt arranged at an angle in the plane of said sup-- to the. horizontal, a car-=- loo riage mounted to reciprocate in adirection transversely to the direction of movement of the belt, ably mounted on said carriage for movement toward and from the acting surface of the a bed to support the glass adjustbelt, a guide roller disposed beyond the car riage and adjustable in a vertical. plane to bear against the working surface of the belt,

a guiding and pressure regulating roller arranged to engage the upper surface of the working stretch of the belt-for adjustin the same toward and from the surface orthe glass to be acted upon, and means for throwing said roller into and out of operative position. I

3. In a machine for polishing the beveled surfaces of plate glass, the combination of 4 ranged below and in rear of said drive shaft, an inclined endless polishin 'bed on which the portion'of the work to be polished is disposed, and arranged to bear against the upper 'surface of the working stretch of the belt to vary its angle of inclina'tion and its pressure against the said surface to be acted upon, and means for ,adjusting said roller.

4:. In armaohine surfaces of plate glass, the combination of an endless traveling polishing belt having a lower working stretch arranged at an angle to the horizontal, a carriage mounted for posed at; a point beyond and substantially movement in a direction transversely of the belt, a work supporting bed-on said carriage adjustable toward and from the belt, a guide roller for the working stretch of the belt disportion the work to be polished is disposed, and so;

for, polishing the beveledin the plane-of and 'means for acting upon the worlnng stretch of the said belt adj acent to said roller to regulate the working angle-of thewo'rking portion of said stretch and its pressure upon the glass. e

'5. Tn a machine for polishing the beveled surfaces of an inclined endless polishing'belt, a carriage mountedcfor movement in a direction transversely of the belt, a work supporting bed ward and from the belt, a guide roller ar'- ranged'to bear against the lower stretch of the belt, a pressure r'oller arranged above the of the bed on which the portion of the upper surface of the as to bear against the belt to varyits angle working'stretch of of inclination and its pressure against the I said surface to be acted upon, and means for adjusting said roller.

In testimony whereof I aflix my signature in presence of two Witnesses. L

HUGO" ZOERNER. Witnesses:

CARL A. MANKii,'Jr.,, ADoLPH HAssn.

said work supporting bed, i

on said carriage adjustable to-. 

